Harrow attachment for plows.



G. H. MYERS.

HABBOW ATTACHMENT FOR FLOWS.

APPLICATION FILED 5.21.24. 1909.

928,210, Patented July 13, 1909.

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UNITED srnrnsggrnnr omnon.

CHARLES H. MYERS, OF LE BOY, ILLINOIS, ASSIGNOR TO NATIONAL HARROW (30.,OF LE ROY,

ILLINOIS, A CORPORATION OF ILLINOIS.

HARROW ATTACHMENT FOR FLOWS.

Specification of Letters Patent.

Patented July 13, 1909.

To all whom it may concern:

Be it known that I, CHARLES H. MYERS, of Le Roy, in the county of McLeanand State of Illinois, have invented certain new and useful Improvementsin Harrow Attachments for Flows; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to improvements in harrow attachments forplows,-the object of the invention being to provide simple and eflicientmeans to permit a harrow when connected with a plow structure forbreaking the earth thrown up in making the furrows, to yield verticallyto overcome obstructions, and to so construct said means that it can bepositively operated to manually raise and. lower the harrow and retainit normally at any desired adjustment with relation to the ground.

With this object in view the invention consists in certain novelfeatures of construction and combinations of parts as hereinafter setforth and pointed out in the claims.

In the accompanying drawing, Figure 1 is a side elevation of a harrowattachment for plows, embodying my improvements. Fig. 2 is a plan viewof the same. Fig. 3 is an enlarged vertical section through the liftingdevice.

1 represents a side rail of a plow frame and 2 a beam connected withsaid rail by means of a bracket 3. The bracket 3 com rises two members45 secured respective y to the rail 1 and the beam 2 and adjustablyconnected together so as to permit horizontal adjustment of the beam 2and the parts carried thereby.

A bearing sleeve 6 is secured to the rear end of the beam 2 and in thissleeve, an arm 7 at one end of a barrow beam 8 is mounted so as topermit said harrow beam to swing vertically. To the rear end of theharrow beam, a barrow 9 of any preferred form of construction, issecured by means of a suit.,

able clamp 10.

Upon the rear end of the beam 2 and in proximity to the bearing sleeve6, a vertically dis osed toothed segment 11 is secured. A band ever 12is pivotally attached at its lower end to the toothed segment 11 andprovided with a suitable detent to engage said toothed. segment.

A bifurcated bracket 13 is securely clamped to the harrow beam at apoint in comparative close proximity with the con- 1 nection of saidbeam to the beam The upper end of the bracket 13 is provided withforwardly projecting lugs 11, between which a lever 15 is pivotallysupported between its ends. A rod 16 is secured to the bracket 13,passes freely through an opening at the lower end of the lever 15 andextends some distance forwardly from the same. The free end of the rod16 is provided with a head 17 and encircling said rod is a spring 18which bears at one end against the head 17 and at the other end againstthe lower arm of the lever 15. The upper arm of the lever 15 isconnected by means of a link 19 with the hand lever 12 at a pointremoved a short distance from the pivotal support of said hand lever.

With the construction and arrangement of parts above described, it willbe seen that when the hand lever is moved forwardly, motion will betransmitted through the link 19 to the upper arm of the lever 15 and asthe lower arm of this lever rests against the bracket 13 at a pointbelow the pivotal support of said lever 15, the harrow beam and theharrow carried thereby will be raised. It is apparent that a rearwardmovement of the hand lever 12 will permit the lowering of the rear endof the harrow beam and of the harrow carried thereby. It will also beseen that should the harrow meet an obstruction it will be permitted toyield upwardly against the resistance of the spring 18. Such yieldingmovement of the harrow and its beam will be permitted because of thelink connection between the upper end of the lever 15 and the lever 12and. the rearward movement of the upper end of l the bracket 13,thelever 15 being pivotally supported between its ends at the upper end ofsaid bracket and bearing at its lower end (which is free to move in onedirection) against the spring.

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is,-

1. A low attachment, comprising a beam, means or connecting the samewith a plow frame, a harrow beam having a hinge-connection with the rearend of said first mentioned beam, a toothed segment secured to the firstmentioned beam, a hand. lever provided with a detent to engage saidtoothed segment, a bracket secured to the harrow beam, a lever pivotedbetween its ends to said bracket, a spring bearing against one arm ofsaid lever, and a link connecting the other arm of said lever with thehand lever.

2. A plow attachment, comprising a sup porting beam, means forconnecting the same with a plow frame, a harrow beam havinghinge-connection with the supporting beam, a toothed segment on thesupporting beam, a hand lever provided with a detent to engage saidtoothed segment, a bracket secured to the harrow beam, a rod projectingforwardly from said bracket and provided at one end with a head, a leverpivoted between its ends to said bracket, a spring on said rod normallypressing the lower arm of said lever against the bracket, and a linkconnecting the upper arm of said lever with the hand lever.

3. A plow attachment, comprising a hinged harrow beam, a bracket securedto said beam, a lever pivoted between its ends to said bracket andengaging the bracket below the pivotal support of said lever therein,operating means connected with the upper arm of said lever, and a springsupported by the bracket and pressing the lower arm of said lever towardsaid bracket.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

CHARLES H. MYERS.

Witnesses JonN HAne, l GEORGE VAN DEVENTER.

